order(*args)

User.order('name')
=> SELECT "users".* FROM "users" ORDER BY name
User.order('name DESC')
=> SELECT "users".* FROM "users" ORDER BY name DESC
User.order('name DESC, email')
=> SELECT "users".* FROM "users" ORDER BY name DESC, email
User.order(:name)
=> SELECT "users".* FROM "users" ORDER BY "users"."name" ASC